US1039446A - Car-door. - Google Patents

Description

A. C. SAGER.

I GAR DOOR.

APPLICATION rum) NOV.13, 1911.

1,039,446. Patented Sept. 24,1912.

Wz'i'a 6/1 4114 jaw/awe UNITED STATES PATENT OFFICE.

ALBERT C. SAGER, OF SAVANNA, ILLINOIS.

CAR-DOOR.

To all whom it may concern Be it known that I, ALBERT C. SAGER, a citizen of the United States, and a resident of Savanna, county of C rroll, and State of Illinois, haveinvented certain new and useful Improvements in Car-Doors, of which the following is a specification.

"My invent-ion relates .to sliding doors such as are adapted for use onfreight. cars, barns, etc.,.and has special reference to doors which are flush with the car or building when closed and which are heavy and difiicult to handle. H a

The object-of my invention'is to provide a; sliding door which, although flush with the side of the car or building when closedfisi yet readily and easily fully opened, and' which shall be stron and durable and secure against loss or displacement. More specifically the object of my inven-; tion is .to improve the supporting and operating means for suchdoor Further objects of iny invention will appear hereinafter. v

My invention resides in a sliding door having ball bearing supporting and operat-' ingmeans. I

"It consists further in a slotted tubular; support rotatable by means of a lever and having ball bearing door supports slidable therein.

The invention further consists in such door holding and operating means in combination with means for securing the door in closed and open position.

My invention further resides in the various improvements, the several combinations and arrangements of parts hereinafter described andillustrat'ed in the accompanying drawin' which form a part of this. specification; and pointed out in the appende claims. I

Ln thedrawings Eigure 1 is a frontelevation of part of the s de ofa car having a door equipped With door supporting and operating means embodying my invention. Fig. 2 is an enlarged end elevation detail taken from the;. upper left hand corner of Fig. 1, showingjn full lines the position of the operating lever when the door is close-dd and in'dotted lines t-he position of the lever and door just after the door has been with-' drawn. from its opening in the side of the:;

car. Fig. 3'is a vertical section taken on the? broken line w-w of Fig. 1, the door having been withdrawn fr'OmHts'opening. 4 is an enlarged detail in partial section Show- Specification of l 'ietters Patent. Application filed November 13, 1911. Serial No 660,058.

iatente d Sept. 24, 1912.

ing the ball containing member within the supporting tube. s 7 Referring further to the drawings, trepresents the side of the car; 2 is a car door flush therewith; 3 is an iron tube containing a slot for the accommodation oft-heksliding member 5, the latter having depending,portions 6 to which .the car door is secured by nuts 7 on the threaded stems respectively of the members 33 secured to .the car door by means of bolts 9. The sliding member 5 is provided with .two pairs of antifriction balls 10 near each end thereof, the four pairs being shown in dotted lines in Fig. l and two pairs being shown in full lines in Fig. 4. Lugs 11 in combination with the depending members 6 hold the balls in operative relation at all times. These balls, as will be seen from l ig. 4, are adapted to .travel in theslot 4., the balls being however of greater diameter than the width of the slot-,theballs thus taking the weight of the door and communicating same to the inner surface of the tube at the point of juncture thereof with said slot. Ihave foundit advantageous to make the member 5 in one integra l'pieoo 1 to prevent the binding cltecl which 1' have found present when the pairs of balls are held by separate members, especially when the member 5 is made to lit clcscly to the inside of the tube opposite the supporting members 6 for purposes of leverage as will be hereinafter described.

A lug having a bell' crank lever 12 is securec in one end of the tube 3 byi ine'ans of a bolt 13. This bolt also securesa collar 14 on said tube. A similar collar .113 is similarly secured at the other end of (the tube, both collars being fixed in close association with hearing standards 16 secured to the sides of the 'car by bolts 13. A third bearing standard .17 adapted to surround only a ortion of the tube 5 is provided on said tu e midway between the other two standards. 'Elig opening in this medial standard permits the'membors ti'to pass therethrough. A chain 18 attached to the lever 12 enab es a person standing on the ground to draw the door into closed position.

19 denotes a light metal shield which I sometimes employ to protect the mechanism just described against the weather.

The fastening mechanism comprises a rod 20 pivoted in boxes 21 and'provided with a pair of bell crank levers 22 lto'which are hinged respectively pins 23 passing through channeled guide members 24-on the door and into similar guide members 25 on the side, of the car. These guide members are bolted to the door and car respectively in the usual manner. Aloop 26 is turned centrally in the rod 20 and adapted to engage an upsta-nding ring or staple 27 in such manner that a lock or seal 28 may be inserted in said ring and prevent the loop from being withdrawn. It will thus be seen that when the loop is in the position just mentioned the car door is effectively secured against withdrawal at the bottom from its opening. A latch 29 adapted to engage a portion of the stop 30 holds the door in open position. The extension 30 on said stop keeps the door from swinging outwardly at the bottom when open. A chain 31 secured to the car door by means of a ring or staple 32 provided with a ring 33 slidable upon a longitudinal rod 34 secured at its ends .by bolts 35. This chain and rod prevent the car door from swinging out obj ectionably while the same is being opened.

VVhilefthe car door is in suspended posi tion as shown in Fig. 3 the lever 12 is substantially horizontal. Assuming the car door to have been moved upon its ball bearings to a position directlyopposite the opening in the car door, it thechain 12 is drawn downwardly the tube 3 in rigid association therewith will be turned and the depending portion 6 of the member Swill be carried inwardly-toward the car. .This effect is secured through the leverage provided by the upper portion of the member 5 binding against the inner surface of the tube, the tube pressing also against the member 6. As the member 6 is turned inward andupward the door 2 pivotally mounted thereon is Sim-- mediately below it. The link 26, which has been in an upright position the While is now turned downwardly and the pins 23 are thereby projected 'into the locking members 25. Great ditliculty has heretofore been experienced in the operation of doors of this kind largely owing to their weight. These difficulties are overcome by my present invention, which as has thus been seen, provided a car door which is extremely simple and easy of operation both in the sliding of thedoorand in securing it in the desired posit-ions.

While I have illustrated a preferred form of; my improved door in connection with a car, I do not limit myself to such use, or to the precise form of construction shown as obviously the door is capable of being used variously and also it is apparent that the in vention may be embodied in various forms of construction. myself of such uses and modifications of the device as fall within the scope of the appended claims.

I claim 1. The combination with a rotatable tubular supporting member; of members mount-- ed for reciprocation therein; and a door hinged to said reciprocatory members.

2. In a sliding door of the class described a tubular supporting member, a sliding member within said tubular member, a door hinged to said sliding member, means for turning said tubular member and securing said door in fixed position, substantially as described. r

3. In a sliding door of the class described, a slotted tubular supporting member, a slid ing member in said tubular member and slot, a door pivotally connected with said sliding member, a lever on said tubular member adapted to turn the same, and means fo holding the door in fixed position.

1. In a sliding door of the class described a tubular member rotatably mounted in fixed supports a collar at each end of said tubular member adapted to prevent lateral movementthereof, a continuous longitudinal slot in saidtubular member, a sliding member in said tubular member comprising a longitu- I therefore wish to avail for maintaining said door in either closed or open position.

5. The combination with a tubular supporting member provided with a slot there in; of a plurality of reciprocatory members mounted in" said tubular member; downwardly extending bars carried. by said re-- ALBERT C. SAGER.

Witnesses GEO. WM. WOLF,

"JOHN R. CoNn nL.

Qua pies of this patent may be obtained for five cents each, by addressing the F commissioner of Patents.

Washington, 12. 0."

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